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Finding the Fourth Proportional to 88,858.32, 122,663.88 and 55,346.64

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Solution

The fourth proportional to 88,858.32, 122,663.88 and 55,346.64 is: 76,402.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,858.32 : 122,663.88 = 55,346.64 : x
  2. Step 2: Convert to fraction form
    88,858.32/122,663.88 = 55,346.64/x
  3. Step 3: Cross multiply
    88,858.32x = 122,663.88 × 55,346.64
  4. Step 4: Simplify right side
    88,858.32x = 6,789,033,607.36
  5. Step 5: Solve for x
    x = 6,789,033,607.36/88,858.32
  6. Step 6: Final answer
    x = 76,402.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.